/*
 * Copyright (c) 2015, Simone Margaritelli <evilsocket at gmail dot com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the name of ARM Inject nor the names of its contributors may be used
 *     to endorse or promote products derived from this software without
 *     specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#include "traced.hpp"
#include <string>

int usage( char *argvz ){
    printf( "Usage: %s <pid> <library>\n", argvz );
    return 1;
}

int main( int argc, char **argv )
{
    if( argc < 3 ){
        return usage(argv[0]);
    }
    else if( geteuid() != 0 ){
        fprintf( stderr, "This script must be executed as root.\n" );
        return 1;
    }

    pid_t       pid     = atoi(argv[1]);
    std::string library = argv[2];

    if( pid == 0 ){
        fprintf( stderr, "Invaid PID %s\n", argv[1] );
        return 1;
    }

    Traced proc(pid);

    printf( "@ Injecting library %s into process %d.\n\n", library.c_str(), pid );

    printf( "@ Calling dlopen in target process ...\n" );

    unsigned long dlret = proc.dlopen( library.c_str() );

    printf( "@ dlopen returned 0x%lX\n", dlret );

    return 0;
}
